The USB (Universal Serial Bus) Interface, is in
fact a very modern high-speed interface. It
actually operates at 3 speed levels, and as
many data and control levels schemas.
It has a Slow, Faster, and Hi-Speed protocol
form.
It can, or cannot, provide power to an external
device - depending on what external device
needs (PC mouse vs a large external disk drive,
or complex printer)
One can power an external USB device - off the USB
port itself, or you can power an external device (ex
-a storeage device) by itself. The USB Interface,
allows PC system designers to finally plan for much
higher-speed external new devices - with this
modern 2007 data comms interface. RS-232C
Serial - is approx. 50 years old this year
(via TTY & paper tape days & old Bell Labs
modems)
A very clear USB primer can be found at:
http://www.howstuffworks.com/usb6.htm
Seems to me that a future version of the K3, should
have it!
Fred, N3CSY
____________________________________________________________________________________
Yahoo! oneSearch: Finally, mobile search
that gives answers, not web links.
http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC
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